The process whose specific outcome is the progression of the sinoatrial (SA) node over time, from its formation to the mature structure. The SA node is part of the cardiac conduction system that controls the timing of heart muscle contraction. It relays electrical signals to the AV node. [ GOC:mtg_heart ]
Synonyms: SAN development SA node development
This is just here as a test because I lose it
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Subclass of:
- anatomical structure development
- atrial cardiac muscle tissue development
- part of some cardiac conduction system development
- results in development of some sinoatrial node
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